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    • 36. 发明申请
    • OXYGEN CONCENTRATION MEASUREMENT WITH GMR
    • 氧气浓度测量与GMR
    • US20110057651A1
    • 2011-03-10
    • US12990986
    • 2009-05-04
    • Haris DuricJosephus Arnoldus Henricus Maria KahlmanJeroen Veen
    • Haris DuricJosephus Arnoldus Henricus Maria KahlmanJeroen Veen
    • G01R33/02
    • G01N27/74G01R33/091
    • In an embodiment, an oxygen sensor comprises a giant magnetoresistance device (10), and a magnetic field generator (14, 14a, 14b) arranged to generate a magnetic field (12, 12a, 12b) overlapping the giant magnetoresistance device and an examination region (20). A component (Bx) of the magnetic field detected by the giant magnetoresistance device is dependent upon an oxygen concentration in the examination region. In an embodiment, a chip (40) includes one or more electrically conductive traces (14a, 14b) disposed on or in the chip and a giant magnetoresistance device (10) disposed on or in the chip such that electrical current flowing in the trace or traces generates a magnetic field (12a, 12b) that overlaps the magnetic field sensor, said magnetic field being perturbed (Bx) by ambient oxygen (24) such that a signal output by the magnetic field sensor indicates ambient oxygen concentration.
    • 在一个实施例中,氧传感器包括巨磁电阻装置(10)和布置成产生与巨磁电阻装置重叠的磁场(12,12a,12b)的磁场发生器(14,14a,14b)和检查区 (20)。 由巨磁电阻装置检测的磁场的分量(Bx)取决于检查区域中的氧浓度。 在一个实施例中,芯片(40)包括设置在芯片上或芯片中的一个或多个导电迹线(14a,14b)和设置在芯片上或芯片上的巨磁电阻器件(10),使得流过迹线或 轨迹产生与磁场传感器重叠的磁场(12a,12b),所述磁场被环境氧(24)扰动(Bx),使得由磁场传感器输出的信号表示环境氧浓度。
    • 38. 发明申请
    • POSITIONING OF MAGNETIC COILS IN A SENSOR DEVICE
    • 传感器装置中磁线圈的定位
    • US20110001472A1
    • 2011-01-06
    • US12808561
    • 2008-12-12
    • Josephus Arnoldus Henricus Maria Kahlman
    • Josephus Arnoldus Henricus Maria Kahlman
    • G01R33/12
    • G01N21/552G01B7/003
    • The invention provides for a method for determining the relative position of at least two magnetic actuator coils (2,3,3′) in a sensor, said coils being arranged on substantially opposite sides of a sensor cartridge (1). By measuring the electromagnetic induction of one of the coils, the relative positions of the coils in the sensor device is determined. Based on the determined relative positions, these positions may be adjusted. Alternatively, the actuation currents in the magnetic coils may be adjusted based on the determined relative positions. Furthermore, a sensor device comprising a sensor cartridge, at least two magnetic coils arranged on substantially opposite sides of the sensor cartridge, and measuring means for determining the electromagnetic induction is provided.
    • 本发明提供了一种用于确定传感器中至少两个磁性致动器线圈(2,3,3')的相对位置的方法,所述线圈布置在传感器盒(1)的基本相对的两侧。 通过测量其中一个线圈的电磁感应,确定传感器装置中线圈的相对位置。 根据确定的相对位置,可以调整这些位置。 或者,可以基于确定的相对位置来调整磁性线圈中的致动电流。 此外,提供一种传感器装置,其包括传感器盒,设置在传感器盒的基本相对侧上的至少两个磁性线圈,以及用于确定电磁感应的测量装置。
    • 40. 发明申请
    • MAGNETIC SENSOR DEVICE WITH ROBUST SIGNAL PROCESSING
    • 具有鲁棒信号处理的磁传感器装置
    • US20100060275A1
    • 2010-03-11
    • US12518897
    • 2007-12-14
    • Jeroen VeenTheodorus Petrus Henricus Gerardus JansenBart Michiel De BoerJosephus Arnoldus Henricus Maria Kahlman
    • Jeroen VeenTheodorus Petrus Henricus Gerardus JansenBart Michiel De BoerJosephus Arnoldus Henricus Maria Kahlman
    • G01R33/12
    • G01R33/093B82Y25/00G01R33/1269
    • The invention relates to a magnetic sensor device (100) comprising a magnetic field generator (1) driven with an excitation current of a first frequency (f1) and a magnetic sensor element (e.g. a GIVER sensor (2)) driven with a sensor current (I2) of a second frequency (f2) for measuring reaction fields (HB) generated by magnetized particles (3). In an associated evaluation unit (10), a reference component (uQ) of the measurement signal (uGMR) is separated that depends on the excitation current (I1) and the sensor current (I2) but not on the presence of magnetized particles (3). The reference component (uQ) may particularly be produced by a combination of the self-magnetization (H2) of the magnetic sensor element (2) and cross-talk related currents. The reference component (uQ) may be isolated based on its phase with respect to a particle-dependent component of the measurement signal (uGMR) or based on its scaling with one of the current frequencies. Monitoring of the reference component (uQ) reveals variations in operating conditions, for example in the sensor gain, that can be used to calibrate the measurement results.
    • 本发明涉及一种磁传感器装置(100),其包括用第一频率(f1)的激励电流驱动的磁场发生器(1)和由传感器电流驱动的磁传感器元件(例如GIVER传感器(2)) (I2),用于测量由磁化颗粒(3)产生的反应场(HB)的第二频率(f2)。 在相关联的评估单元(10)中,测量信号(uGMR)的参考分量(uQ)被分离,其取决于激励电流(I1)和传感器电流(I2),但不依赖于磁化颗粒(3 )。 参考分量(uQ)可以特别地通过磁传感器元件(2)的自磁化(H2)和串扰相关电流的组合来产生。 参考分量(uQ)可以基于其相对于测量信号(uGMR)的粒子相关分量的相位或者基于其与当前频率之一的比例来隔离。 参考组件(uQ)的监视显示了可用于校准测量结果的操作条件的变化,例如传感器增益。